Mary Alice

Mary Alice is the younger sister of Sebastian Harper and Avni Harper, the biological daughter of Frank Harper and Ava Harper, former police officer, the current "Alpha Red" and leader of the Alpha Rangers.

After her birth, Mary Alice was given to another family and Frank and Ava were told that the latter had suffered a miscarriage. Years later, Mary Alice is told of her actual family and sets out to find them. Encountering the hero known as Omega, Mary Alice immediately idolizes him and eventually finds out his identity as Sebastian, her older brother. After the defeat of Damien Zagan, Wes Tate and Shane Cole give their team, the Alpha Rangers, to Mary Alice.

As the new "Alpha Red" and leader of the Alpha Rangers, Mary Alice recruits Rudy Collins, Mark Merrick, Bridge Carson, Jen Scott, and Sky Austin to form the new Alpha Rangers. Following the death of Rudy and Will's retirement, Mary Alice recruits Rachel Hathaway.

Years later, the team is captured by the Brotherhood and are later freed by Sebastian Harper. Mary Alice helps Sebastian in his final attack on the Brotherhood.